TECH INFO
Page 200 | April 2015
36 x 36
48 x 48
30 x 48
30 x 60
36 x 60
36 x 72
48 x 72
48 x 96
Internal Bracing: Polymer Concrete
Internal bracing may be warranted
for any manufacturer’s underground
enclosure. If 95% compaction is
required, or if heavy vehicles will be
present during construction and/or
throughout the life of the enclosure,
internal bracing during backfilling
operations will ensure minimal box
sidewall deflections. This applies to
enclosures made from any material
to maintain the original sidewall
geometry. Supports should be 2 x 4s
or similar material sized to hold at
mid-depth.
NOTE: Applicable PenCell enclosures come stan-
dard with bracing.
TECH INFO
Page 201 | April 2015
Internal Bracing: FRP
30 x 48
36 x 36
48 x 48
30 x 60
to
48 x 96
Larger than
48 x 96
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